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1-What is the purpose of a bacterial operon?

2-Describe the differences in gene expression control between a repressible and an inducible bacterial operon?

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Tod Thiel
Tod ThielLv2
28 Sep 2019

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Related questions

Consider a hypothetical bacterial operon encoding genes needed for the degradation of compound X. Which statement is most likely to be true? I know the answer is B when X is abundant, the operon is on. But why is this? An explanation would be helpful.

A. when X is abundant, the operon is off B. when X is abundant, the operon is on C. this operon displays repressible, rather than inducible, expression.

D. the mRNA produced by this operon is monocistronic

The lac operon is the classic "Inducible system" for gene control, while the trp operon is the classic "repressible system". A key difference between these systems involves the manner in which the repressor proteins control transcription. Compare and contrast the LacI repressor protien with the TrpR repressor protein

You have discovered the oil operon. The genes of theoil operon encode enzymes that allow bacteria to breakdown oil. The oil operon is only transcribed when bacteriaencounter oil in their environment.
(a) Is the oil
operon inducible or repressible? Why? (6 pts.)
(b) How do inducible and repressible operons differ from eachother?

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